What common syntax error is indicated by the message "Parse error: syntax error, unexpected T_VARIABLE, expecting ',' or ';' in /var/www/datei.php on line 39" in PHP?

The error message "Parse error: syntax error, unexpected T_VARIABLE, expecting ',' or ';'" in PHP typically indicates a missing semicolon at the end of a line or a missing comma in a function call. To solve this issue, carefully review the code on line 39 in the specified file and ensure that all variables are properly declared and terminated with semicolons.

// Incorrect code causing the parse error
$variable1 = "Hello"
$variable2 = "World";

// Corrected code with semicolons added
$variable1 = "Hello";
$variable2 = "World";